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(No Model.)

J. A. HOWELL & H. A. POOLER.

OENTRIFUGAL CRBAMER.

No. 366,483. Patented July 12, 1887.

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UNITED STATES PATENT OFFICE.

JAMES A. HOlVELL AND HIRAM A. POOLER, OF GOSHEN, NElV YORK, AS- SIGNORSOF ONEIIALF TO CHARLES A. COOPER, OF OIL CITY, PENNSYL- VANIA, ANDEDXVARD W. MARTIN, OF NEWV YORK, N. Y.

CENTRIFUGAL CREAMER.

SPECIFICATION forming part of Letters Patent No. 366,483, dated July 12,188').

Application filed October id, 1885.

To aZZ whom it may concern:

Be it known that we, JAMES A. HOWELL and HIBAM A. PooLER, citizens ofthe United States, residing at Goshen, New York, have invented new anduseful Improvements in Gen trifugal Creamer-s, of which the following isa specification.

This invention relates to means for purifying milk by means ofcentrifugal force.

The object of the invention is to produce a separator in which theforeign substances and impurities contained in the milk will be retainedand the pure and light milk will be carried upward and discharged.

The invention consists, substantially, in the vessel as constructed, andto be more particularly described hereinafter, and pointed out in theclaim.

In order that those skilled in the art to which our invention appertainsmay know how to makeand use the same, we will now proceed to describe itin connection with the accompanying drawings, in which- Figure 1 is acentral vertical section, and

Fig. 2 is a horizontal section.

In the drawings, A represents the main portion of the separator, whichis preferably made of metal,and is of conical form, as shown. It isprovided with an opening, 0, in the top,

through which the milk to be purified is introduced.

B B represent a series of projecting-ribs, which extendinward from thevessel, the function of which is to hold the milk and insure 55 itsrevolving as fast as the vessel, in order that the greatest possibleamount of centrifugal force may be exerted upon the milk. These ribs areformed with the main portion of the separator, and extend down to thepoint at 0 which the annular chamber begins.

E represents an annular indentation, extending around the lower part ofthe vessel, into which theheavicr substances, which are of greaterspecific gravity than the milk, and

consequently fall to the bottom thereof, are thrown by centrifugal forceand retained. The sides or walls forming the annular indentation do notintersect with the sides of the separator proper in the direct line, butare made to extend outwardly beyond the same,

thus forming approximately a separate cham- Renewed December 10, 1886.Serial No. 221,183.

(No model.)

ber, whereby the sediment is more apt to be retained in the bottom byreason of the ceir trifugal force tending to carry it farther outwardthan would be the case if the said chamher were not so extended.

D represents aspiudlc, which is formed with orv attached to the vessel,and through which rotary motion is imparted to the said vessel.

In the operation of the device the vessel is revolved at the rate offrom five hundred to ten thousand revolutions per minute, and while sorevolving the milk is introduced through the center of the opening inthe top of the vessel. The milk falls to thebottom and 6 is carried tothe inner face of the vessel, and theheavicr portions, beiu g carriedlarthestoutward and nearer the bottom of the vessel, are consequentlyconfined in the annular enlargement near the bottom. Thelightersubstanceis carried up along the inner face of the vessel, and is dischargedthrough the opening in the top at the edges thereof, from which it maybc'conveyed to any desired point.

\Ve are aware that in the present class of in- 7 ventions it is not new,broadly, to form the vessel or creamer proper in the shapeot' a hollowshell having a contracted open neck; and, also, that it is usual toprovide centrifugal creamers with internal wings; but we are not 8caware that a centrifugal creamer has ever been heretofore devisedinvolving the particular construction herein claimed.

Having thus described our invention, what we claim as new, and desire tosecure by Letters Patent, is

The herein described centrifugal creamer, consisting of the hollowconical vessel A, open at the top, provided with inclined corrugatedsides and at its base with an annular enlarged o portion or swellprojecting beyond the plane of the sides, and forming a chamber, E, inwhich the sediment is retained.

In testimony whereof we have hereunto set our hands and seals inthepresence of two snh- 5 scribing witnesses.

JAMES A. nowELL. [n 3.1 HIRAM A. POOLER. n s] W'itnesses:

O. HOWELL, SENEoA JEssUP.

